CVE-2025-32706: Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability
CVE-2025-32706 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2025-05-13
A heap-based buffer overflow vulnerability in the Microsoft Windows Common Log File System (CLFS) Driver allows a locally authenticated attacker to elevate privileges. The flaw stems from improper input validation within the driver and has been observed being exploited in the wild.
Yes. CVE-2025-32706 is known to be exploited in the wild, first recorded on 13 May 2025. Treat it as urgent.
How severe is CVE-2025-32706?
Critical severity, with a CVSS score of 7.8, published 13 May 2025.
Which products and versions are affected?
Microsoft Windows 10 1507, 1607, 1809, 21H2, 22H2; Microsoft Windows 11 22H2, 23H2, 24H2; Microsoft Windows Server 2008, 2012 R2, 2016, 2019, 2022, 23H2, 2025.
Is there a fix for CVE-2025-32706?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-32706 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2025-32706?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Microsoft Windows 10 1507, 1607, 1809, 21H2, 22H2
Microsoft Windows 11 22H2, 23H2, 24H2
Microsoft Windows Server 2008, 2012 R2, 2016, 2019, 2022, 23H2, 2025
Timeline
2025-05-13: disclosed
2025-05-13: kev added: Added to CISA Known Exploited Vulnerabilities Catalog